diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-15 21:16:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-15 21:16:02 -0700 |
| commit | 99a2c789ddeb703cf7b0a3d889ab1a25cf4cbbaf (patch) | |
| tree | 3a653ba4bfb2db0c8fc52fbb5a2f0dc2e817e513 /Documentation/admin-guide | |
| parent | fa3b39cdafbfd5d9b1d064f5cf63cf0314f1d070 (diff) | |
| parent | 9a47249d444d344051c7c0e909fad0e88515a5c2 (diff) | |
Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull random updates from Ted Ts'o:
"Some changes to trust cpu-based hwrng (such as RDRAND) for
initializing hashed pointers and (optionally, controlled by a config
option) to initialize the CRNG to avoid boot hangs"
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: Make crng state queryable
random: remove preempt disabled region
random: add a config option to trust the CPU's hwrng
vsprintf: Add command line option debug_boot_weak_hash
vsprintf: Use hw RNG for ptr_key
random: Return nbytes filled from hw RNG
random: Fix whitespace pre random-bytes work
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a32f2a126791..0c883029881a 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -748,6 +748,14 @@ debug [KNL] Enable kernel debugging (events log level). + debug_boot_weak_hash + [KNL] Enable printing [hashed] pointers early in the + boot sequence. If enabled, we use a weak hash instead + of siphash to hash pointers. Use this option if you are + seeing instances of '(___ptrval___)') and need to see a + value (hashed pointer) instead. Cryptographically + insecure, please do not use on production kernels. + debug_locks_verbose= [KNL] verbose self-tests Format=<0|1> |